| 22101 | Pelican Dome Exploration | Harahan, LA 70123 | Oil & Gas Operator | Jun 1997 |
| 22102 | Pelican Dome Exploration Inc | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 22103 | Pelican Gas Prod. Assoc. | | Oil & Gas Operator | Oct 1987 |
| 22104 | Pelican Hill Oil & Gas Inc | Carlsbad, CA 92010 | Oil & Gas Operator | May 2013 |
| 22105 | Pelican Producing Co. | | Gas Operator | Nov 1992 |
| 22106 | Pelican Producing Inc | Caldwell, OH 43724 | Oil & Gas Operator | Dec 1996 |
| 22107 | Pelican Production Company | New Orleans, LA 70130-2477 | Oil & Gas Operator | Mar 2014 |
| 22108 | Pelican Resource | | Oil Operator | Jan 1991 |
| 22109 | Pelico Pipeline, LLC | | Oil Operator | Dec 2024 |
| 22110 | Pelletter, James J & Weist, Richard M | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 22111 | Pelto Oil Co | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 22112 | Pemberton, W. C. Oil Co., Inc. | Cameron, TX 76520 | Oil & Gas Operator | Jul 2025 |
| 22113 | Pembroke Central School District | Corfu, NY 14036 | Gas Operator | Dec 2024 |
| 22114 | Pembrook Oil Company | Big Lake, TX 76932 | Oil & Gas Operator | May 1999 |
| 22115 | Pembrooke Oil & Gas Inc | Franklin, PA 16323-7760 | Oil & Gas Operator | Dec 2024 |
| 22116 | Pemco Gas Inc | Indian Harbor B, FL 32937 | Oil & Gas Operator | Dec 1997 |
| 22117 | Pemco LLC | Skiatook, OK 74070 | Oil Operator | Apr 2025 |
| 22118 | Pemex Inc | Dallas, TX 75367-0249 | Oil & Gas Operator | Nov 2015 |
| 22119 | Pen-Tex Production Co. Inc. | Penwell, TX 79776 | Oil & Gas Operator | Jul 2025 |
| 22120 | Pen-Tex Production Co. L.L.C. | Penwell, TX 79776 | Oil & Gas Operator | Nov 1998 |
| 22121 | Pena Bros. Oil And Gas, LLC | Odessa, TX 79764 | Oil Operator | Jul 2025 |
| 22122 | Pend Oreille Oil & Gas Company | | Oil & Gas Operator | Sep 1989 |
| 22123 | Pendergraft Oil Co. | Lueders, TX 79533 | Oil & Gas Operator | Jan 1998 |
| 22124 | Pendleton Land & | | Oil Operator | Aug 1985 |
| 22125 | Pendolino Resources, LLC | Dallas, TX 75205 | Gas Operator | Mar 2023 |
| 22126 | Pendragon Energy Partners Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2009 |
| 22127 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2025 |
| 22128 | Pendulum Petrole | | Oil & Gas Operator | Dec 1995 |
| 22129 | Pendulum Petroleum, Inc. | Pinedale, WY 82941 | Oil Operator | Aug 1999 |
| 22130 | Penequine Ranch | | Gas Operator | Sep 2019 |
| 22131 | Penergy | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 22132 | Pengo Petroleum, Inc. | | Oil & Gas Operator | Dec 2013 |
| 22133 | Pengo Petroleum, Inc. & J.W.S. | | Oil & Gas Operator | Jul 1977 |
| 22134 | Pengo Producing Company | | Oil & Gas Operator | Mar 1987 |
| 22135 | Peninsula Group Inc | Peninsula, OH 44264 | Oil & Gas Operator | Dec 1991 |
| 22136 | Peninsula Open Space Trust | | Oil & Gas Operator | Dec 2008 |
| 22137 | Peninsular Oil & Gas Co | Ada, MI 49301 | Oil & Gas Operator | Dec 2001 |
| 22138 | Penn Homa Oil & Gas Co | Edmond, OK 73083 | Oil & Gas Operator | Oct 2013 |
| 22139 | Penn Inc. | | Oil & Gas Operator | Dec 2004 |
| 22140 | Penn Production Company Inc | | Oil & Gas Operator | Nov 2014 |
| 22141 | Penn Resources, Inc. | Dallas, TX 75219 | Oil & Gas Operator | Sep 1987 |
| 22142 | Penn VIew Exploration Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2024 |
| 22143 | Penn VIrginia MC Operating Co LLC | Houston, TX 77084-7213 | Oil & Gas Operator | Jan 2025 |
| 22144 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 22145 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 22146 | Penn, G. R. Production Co. | McPherson, KS 67460 | Gas Operator | Nov 1997 |
| 22147 | Penn-Ohio Investment Corp. | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2004 |
| 22148 | Pennaco Energy Incorporated | Gillette, WY 82718 | Oil & Gas Operator | Feb 2021 |
| 22149 | Pennant Dev. And Prod., LLC | Midland, TX 79702 | Oil Operator | Jul 2025 |
| 22150 | Pennant Energy LLC | Oklahoma City, OK 73116 | Oil Operator | Dec 2024 |
| 22151 | Pennant Oil & Gas LLC | Oklahma City, OK 73159-6905 | Oil & Gas Operator | Jan 2024 |
| 22152 | Pennant Petroleum Corporation | | Oil Operator | Dec 2002 |
| 22153 | Pennartz Productions, LLC. | Jacksboro, TX 76458 | Oil Operator | Jul 2025 |
| 22154 | Penneco Exploration Company Of Wyo LLC | Delmont, PA 15626 | Oil Operator | Aug 2021 |
| 22155 | Penneco Oil Company, Inc. | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 22156 | Pennenergy Resources LLC | Pittsburgh, PA 15275-1063 | Oil & Gas Operator | May 2025 |
| 22157 | Penner Energy Inc | Oklahoma City, OK 73120-1930 | Oil & Gas Operator | May 2025 |
| 22158 | Pennfield Energy LLC | Erie, PA 16510-4760 | Oil & Gas Operator | Dec 2021 |
| 22159 | Pennhills Resources LLC | MT. Jewett, PA 16740 | Oil & Gas Operator | May 2025 |
| 22160 | Pennine Resc Inc | | Oil Operator | Sep 1992 |
| 22161 | Pennington Oil & Gas Int, LLC | | Oil & Gas Operator | Dec 2024 |
| 22162 | Pennington Operating Company, LLC | | Oil & Gas Operator | Jul 2020 |
| 22163 | Pennington Refining LLC | Grand Prairie, TX 75051 | Oil Operator | Jul 2025 |
| 22164 | Pennington, W. L., Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 1996 |
| 22165 | Pennmark Resources Company | Edmond, OK 73013 | Oil & Gas Operator | Apr 2025 |
| 22166 | Penntex Petroleum Corporation | Austin, TX 78731 | Oil & Gas Operator | Jul 2025 |
| 22167 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 22168 | Penny, Ralph E. | White Plains, NY 10601 | Oil & Gas Operator | Jul 2023 |
| 22169 | Pennzenergy | Houston, TX 77252 | Oil & Gas Operator | Dec 1986 |
| 22170 | Pennzenergy Exp. & Prod., L.L.C. | Houston, TX 77210 | Oil & Gas Operator | Mar 2000 |
| 22171 | Pennzenergy Explor & Prod LLC | | Oil & Gas Operator | Dec 1999 |
| 22172 | Pennzenergy Exploration & Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
| 22173 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
| 22174 | Pennzoil E & P & M H Marr | | Oil & Gas Operator | Sep 1993 |
| 22175 | Pennzoil E & P Co - Arco | | Oil & Gas Operator | Dec 1993 |
| 22176 | Pennzoil E & P Co - Clark Oil | | Oil & Gas Operator | Apr 1980 |
| 22177 | Pennzoil E & P Co Et Al | | Oil & Gas Operator | Feb 1999 |
| 22178 | Pennzoil E & P Co-Sohio Et Al | | Oil & Gas Operator | Jun 1991 |
| 22179 | Pennzoil E & P Co-Sohio Petr | | Oil & Gas Operator | Feb 1999 |
| 22180 | Pennzoil Expl & Prod Co -TX | | Oil & Gas Operator | May 1993 |
| 22181 | Pennzoil Expl & Prod Co. -MS | | Oil Operator | Jan 1988 |
| 22182 | Pennzoil Explor & Prod Co | Houston, TX 77002 | Oil & Gas Operator | Mar 2000 |
| 22183 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 22184 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 22185 | Pennzoil Prod Co | Vienna, WV 26105-2141 | Oil & Gas Operator | Dec 2000 |
| 22186 | Pennzoil Producing Company | | Oil & Gas Operator | Oct 1992 |
| 22187 | Penroc Oil Corp. | Hobbs, NM 88241 | Oil & Gas Operator | May 2025 |
| 22188 | Penrod Oil Company Of Texas, Inc | Milano, TX 76556 | Oil & Gas Operator | Jul 2025 |
| 22189 | Pense Brothers Drilling | | Oil Operator | Dec 1998 |
| 22190 | Pentad Development Corp. (A) | Dallas, TX 75201 | Oil & Gas Operator | Mar 1993 |
| 22191 | Pentagon Petroleum, Inc. | | Oil & Gas Operator | Sep 1991 |
| 22192 | Pentarch Petroleum | | Oil Operator | May 2025 |
| 22193 | Pentergy Operating, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Jul 2025 |
| 22194 | Pentex Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2003 |
| 22195 | Pentex Operating Company | Oklahoma City, OK 73132 | Oil & Gas Operator | Oct 1994 |
| 22196 | Penton And Penton | | Oil & Gas Operator | Jan 1983 |
| 22197 | Pentress Gas LLC | Pentress, WV 26544 | Gas Operator | Dec 2021 |
| 22198 | Penwell Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 22199 | Penwell South Operating LLC | Houston, TX 77269 | Oil Operator | Jul 2025 |
| 22200 | Peoco LLC | | Gas Operator | Apr 2025 |